a45 amg downpipe with 200 cell cat or catted down pipe

https://brondex.co.uk/products/mercedes-a45-amg-downpipe-with-200-cell-sportcat-2013 200 cell SPORT CATALYTIC CONVERTER for Mersedes A45 AMG (M133 E20 engine) is entirely made of high-quality stainless steel by the means of the welding by TIG technique in argon medium. This detail is completely compatible with standard exhaust system!